Engineered for strength and durability, these steel concrete screw anchors are perfect for securing materials in concrete and masonry projects. Measuring 3/8 inch in diameter and 2-1/2 inches in length, each screw bolt is designed to provide a reliable and secure hold, making them ideal for both professional contractors and DIY enthusiasts. This pack of 15 ensures you have ample supply for multiple applications, allowing you to tackle a variety of projects with confidence and ease.